The crystal structures of two linked-porphyrin precursors have been determined. In the crystalline state, 1,4-bis[2-(1,3-dioxan-2-yl)phenyl]butane, C24H30O4, (I), exists in a stair-like conformation with dioxane rings in chair conformations. The molecule is positioned on an inversion center. In the crystalline state, 1,2-bis(1,3-dioxan-2-yl)benzene, C14H18O4, (II), is arranged in zigzag chains. In each chain, molecules of (II) are tilted 106.2 (1)° relative to each other. They are also oriented to form a weak C-H⋯O contact (H⋯O 2.43 Å).
|Original language||English (US)|
|Number of pages||3|
|Journal||Acta Crystallographica Section C: Crystal Structure Communications|
|State||Published - Sep 15 1999|
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)